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Ectyoplasia ferox Brown encrusting octopus sponge

Ectyoplasia ferox is commonly referred to as Brown encrusting octopus sponge. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic hazard unknown.


Profilbild Urheber Anne Frijsinger & Mat Vestjens, Holland

Copyright Anne Frijsinger & Mat Vestjens


Courtesy of the author Anne Frijsinger & Mat Vestjens, Holland Anne Frijsinger & Mat Vestjens, Holland. Please visit www.natuurlijkmooi.net for more information.

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lexID:
7036 
AphiaID:
168021 
Scientific:
Ectyoplasia ferox 
German:
Schwamm 
English:
Brown Encrusting Octopus Sponge 
Category:
Marine Sponges 
Family tree:
Animalia (Kingdom) > Porifera (Phylum) > Demospongiae (Class) > Axinellida (Order) > Raspailiidae (Family) > Ectyoplasia (Genus) > ferox (Species) 
Initial determination:
(Duchassaing & Michelotti, ), 1864 
Occurrence:
Belize, Cuba, Florida, Gulf of Mexico, The Bahamas, the Caribbean, the Cayman Islands, the Netherlands Antilles, USA, Venezuela, Virgin Islands, U.S. 
Marine Zone:
Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 
Sea depth:
2 - 25 Meter 
Habitats:
Seawater, Sea water 
Size:
up to 11.81" (30 cm) 
Temperature:
71.6 °F - 82.4 °F (22°C - 28°C) 
Food:
Filter feeder, Plankton, Suspension feeder 
Difficulty:
Not suitable for aquarium keeping 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2026-02-20 19:40:41 

Info

Ectyoplasia ferox (Duchassaing & Michelotti, 1864)

Description:
The sponge grows in two habits:
(a) Thickly incrusting, with oscules on top of hemispherical or low conical projections; up to 5 cm thick, with a spread of 30 cm or more (E. ferox habitus).
(b) Massive, erect, often compressed, thickly flabellate, with oscules on lateral, horizontally projecting elevations, and on terminal erect chimneys, which are like turrets, connected by sharply edged crests. The erect chimneys may take over almost completely, clustering, coalescent, up to 10 cm long, gradually tapering, surpassing the connecting ridges.
The oscules in both types are 2-7 mm wide, provided with a recessed, plane, contractile diaphragm. The surface has a felt-like texture; the consistency is spongy, compressible, resilient and easily torn.

Color:
The color is externally a rich brownish orange; internally yellow-orange.

Habitat:
Inhabit reefs and adjacent areas. Often grow over coral rubble and dead areas of the reef.

Distribution:
Occasional Florida Keys; common in the Bahamas and Caribbean.
Source: Marine Species Identification Portal

Synonymised names
Amphimedon ferox Duchassaing & Michelotti, 1864 · unaccepted (genus transfer)
Ectyoplasia ferox surgens Wiedenmayer, 1977 · unaccepted (junior synonym)
Ectyoplasia surgens Wiedenmayer, 1977 · unaccepted (junior synonym)
Hemectyon ferox (Duchassaing & Michelotti, 1864) · unaccepted
Hymeniacidon amphilecta de Laubenfels, 1936 · unaccepted (genus transfer and junior synonym)

Direct children (2)
Subspecies Ectyoplasia ferox explicata Wiedenmayer, 1977 accepted as Dragmacidon reticulatum (Ridley & Dendy, 1886) (genus transfer and status change)
Subspecies Ectyoplasia ferox surgens Wiedenmayer, 1977 accepted as Ectyoplasia ferox (Duchassaing & Michelotti, 1864) (junior synonym)

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